Make sure to check the value of `undo-limit`, as the low default value greatly (and needlessly, on modern machines) nerfs undo. It also applies to extensions li

Make sure to check the value of `undo-limit`, as the low default value greatly (and needlessly, on modern machines) nerfs undo. It also applies to extensions like undo-tree and vundo I believe. > undo-limit is a variable defined in ‘C source code’. > Its value is 10000000 > Original value was 160000 Speaking of extensions, I find undo-tree pretty buggy. I might be one of a dozen people who actually love the default undo/redo mechanism.